That's my teenage years, most of those cd's I bought while in a locked down maximum level group home many many years ago, can't remember what others I owned back then but that's about it. That's pretty much all I owned and worshipped in my teenage years

I didn't start getting involved in underground metal until I was around 17 so my list is fairly lame (but honest).

Queen - Greatest Hits
S.P.O.C.K - Five Year Mission
The Sisters of Mercy - First and Last and Always
Metallica - Black album, first three
Iron Maiden - Live After Death
In Flames - Whoracle
Dark Tranquillity - The Gallery
Judas Priest - Defenders of the Faith
Helloween - Keepers 1 and 2
Hammerfall - Legacy of Kings

The last two albums were the first "extreme" Metal I ever heard. Of course Slayer, Kreator, Darkthrone, Unleashed, Pestilence etc. etc. were hugely important but those albums there marked defining moments.